164555753243 has 8 divisors (see below), whose sum is σ = 188537433312. Its totient is φ = 140692502016.

The previous prime is 164555753227. The next prime is 164555753291. The reversal of 164555753243 is 342357555461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164555753243 - 2⁴ = 164555753227 is a prime.

It is a super-2 number, since 2×164555753243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164555753191 and 164555753200.

It is not an unprimeable number, because it can be changed into a prime (164555753443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29604230 + ... + 29609787.

It is an arithmetic number, because the mean of its divisors is an integer number (23567179164).

Almost surely, 2^164555753243 is an apocalyptic number.

164555753243 is a deficient number, since it is larger than the sum of its proper divisors (23981680069).

164555753243 is an equidigital number, since it uses as much as digits as its factorization.

164555753243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59214421.

The product of its digits is 7560000, while the sum is 50.

The spelling of 164555753243 in words is "one hundred sixty-four billion, five hundred fifty-five million, seven hundred fifty-three thousand, two hundred forty-three".